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GPT OSS 20B

At a glance

OpenAI's compact open-weights model for efficient inference.

131K ctx$0.02/$0.09 per M
Demos
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AI Output
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Benchmarks
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Reasoning
CodingInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Reasoning & Knowledge
Graduate Science60.8%
Math
Competition Math65.3%
Agentic
Terminal Tasks3.4%
Specs
131K
Context
33K
Max output
Aug 2025
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.02/M tokens
Output$0.09/M tokens
Cache read$0.009/M tokens
Chat with GPT OSS 20BGo to model